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Answer the following. (Class 10 Science 2026, Q16a)

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ScienceCBSE Class 10 · Board exam 2026, set 31/2/1 · 5 marks · Long answer

CBSE Class 10 Science 2026: question 16(a)

Set in the CBSE Class 10 board exam of 2026, paper 31/2/1, section A, question 16(a), for 5 marks. Try it first; the hints and our step-by-step solution are below.

Q16(a) · 5 marks · Long answerHow do Organisms Reproduce?

Answer the following.

  1. (i)

    Name an organ that helps in the formation of male germ cells in humans and also mention the condition that favours the formation of male germ cells.

    2 marks
  2. (ii)

    In male reproductive system, write the pathway followed to deliver male germ cells to the site of fertilisation.

    2 marks
  3. (iii)

    Mention the main physical feature of the male germ cell that helps it move towards the female germ cell.

    1 mark

Source: official question paper from cbse.gov.in (PDF). See it in the full 2026 board paper, set 31/2/1.

Hints

Open one hint at a time and try again before the next.

Hint 1

Why are the testes located outside the abdominal cavity?

Hint 2

Trace the tube that carries sperms and the common passage it joins.

Hint 3

Which part of the sperm helps it swim?

Step-by-step solution

Each step shows the marks it earns, as an examiner would award them. Checked by an independent re-solve from the question paper.

  1. (i) Organ: Testes. They form the male germ cells (sperms).

    1 mark

  2. (i) Condition: sperm formation needs a temperature lower than normal body temperature, which is why the testes lie in the scrotum outside the abdominal cavity. Testosterone secreted by the testes also regulates sperm formation.

    1 mark

  3. (ii) Sperms formed in the testes are carried by the vas deferens. The vas deferens joins the urethra, the common passage for sperms and urine. Pathway: Testes → Vas deferens → Urethra → out of the body. Secretions of the seminal vesicles and prostate gland are added on the way.

    2 marks

  4. (iii) The sperm has a long tail, which helps it swim towards the female germ cell.

    1 mark

Answer: (i) Testes; temperature lower than body temperature; (ii) Testes → Vas deferens → Urethra; (iii) Long tail

Where the marks are

  • Names testes (1 mark)
  • States lower than body temperature (or testosterone) as the condition (1 mark)
  • Pathway testes → vas deferens → urethra (2 marks)
  • Long tail of sperm (1 mark)

Revise the chapter

Practise this chapterBoard-style questions from How do Organisms Reproduce?, one at a time, marked against the answer key and marking points.Back to the full paper2026 board paper, set 31/2/1: every question, by section.

The question is transcribed from the official paper; figures are described in words. The solution, hints and chapter tag are ours. Spotted an error? Write tosupport@questionbuddy.in.